@article{RichterKrauseFechneretal.2011,
  author    = {Philipp Richter and F. Krause and Cora Fechner and Jane C. Charlton and M. T. Murphy},
  title     = {The neutral gas extent of galaxies as derived from weak intervening Ca II absorbers},
  journal   = {Astronomy and astrophysics : an international weekly journal},
  volume    = {528},
  number    = {4},
  doi       = {10.1051/0004-6361/201015566},
  year      = {2011},
}